Lubricating oil compositions

Solid anti-friction devices – materials therefor – lubricant or se – Lubricants or separants for moving solid surfaces and... – Compound of indeterminate structure – prepared by reacting a...

Reexamination Certificate

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Details

C508S232000, C508S287000, C508S291000, C508S460000, C508S469000, C508S518000, C508S542000, C508S561000, C508S574000, C508S586000, C508S591000

Reexamination Certificate

active

06869919

ABSTRACT:
Soot induced kinematic viscosity increase of lubricating oil compositions for diesel engines equipped with EGR systems can be ameliorated by selection of viscosity modifier, lubricating oil flow improvers, detergents and/or dispersants.

REFERENCES:
patent: 5356552 (1994-10-01), Harrison et al.
patent: 5849676 (1998-12-01), Harrison et al.
patent: 6140280 (2000-10-01), Nakano et al.
patent: 6187721 (2001-02-01), Goldblatt et al.
patent: 6207625 (2001-03-01), Ogano et al.
patent: 6245719 (2001-06-01), Kobori
patent: 6303550 (2001-10-01), Wedlock et al.
patent: 6323162 (2001-11-01), Yasunori et al.
patent: 6329328 (2001-12-01), Koganei et al.
patent: 6412468 (2002-07-01), Pudelski et al.
patent: 6495496 (2002-12-01), Gutierrez et al.
patent: 6588393 (2003-07-01), Chamberlin et al.
patent: 6715473 (2004-04-01), Ritchie et al.
patent: 20020115576 (2002-08-01), Gutierrez et al.
patent: 0 765 931 (1997-04-01), None
patent: 1167497 (2002-01-01), None
“A Study of the Character and Deposition Rates of Sulfur Species in the EGR Cooling System of a Heavy-Duty Diesel Engine”, J. W. Girard et al.
SAE Technical Paper Series, Society of Automotive Engineers, Warrendale, PA, US, No. 1999-1-3566, 1999, pp. 1-12, XP-002263741.
“Effect of Diesel Soot Contaminated Oil on Engine Wear-Investigation of Novel Oil Formulations”, M. Gautam et al.
Tribology International, Butterworth Scientific Ldt, Guildford, GB, vol. 32, No. 12, 1999, pp. 687-699, XP-002263742.

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